VR-Training Project

by Fabio Genz and Dieter Kranzlmüller

Arsine Chinaryan, Anh Hoang Minh Dang, Iris Dizdari, Margarita Khachatryan

Supervisor: Daniel Schlichting

2024-02-13

Outline

  1. Overview & Terminology

  2. Data analysis

    • Relationship between Stress indicators and Physiological Measurements
    • Relationship over the rounds
    • Subgroups and Outliers
    • Cohorts comparison: Similarities and Differences

  3. Summary and Discussion

Overview

VR-Training: Adapting Virtual Reality Training Applications by Dynamically Adjusting Visual Aspects
Author: Fabio Genz and Dieter Kranzlmüller

  • Survey: Cross-sectional study with longitudinal elements

  • 2 Cohorts (Linne and Dame)

    – 20 participants in Linne, 80 participants in Dame

    – 9 rounds of training for both cohorts

    – 2 rounds of test per cohort (Linne: VR, Dame: Real-world)

    – 3 groups of training versions: Adaptive, Non-Adaptive, Control

Terminology

Stress indicators:

  • Answer Q1: Perceived cognitive load (1 to 6 with 1 very low and 6 very high)
  • Answer Q2: Perceived physical load (1 to 6 with 1 very low and 6 very high)

Terminology

Physiological Measurement Data (PMD)

  • Heart rate (HR): Heart rate beats per minute (bpm)
  • IBI: Interbeat interval (ms)
  • SDNN: Standard deviation of the NN intervals
  • RMSSD: Root mean square of successive differences
  • SCL: Skin conductance level (µS (micro Siemens))
  • SCR frequency: Frequency of the skin conductance response
  • SCR amplitude: Amplitude/strength of the skin conductance response (µS/µmho (micro Siemens/micro Ohm))
  • SCR rising time: Rising time of the skin conductance response
  • Blink rate last minute: Blink frequency per minute
  • Saccade amplitude: Degree of eye movement
  • Saccade velocity: Speed of sudden eye movements

Outline

1. Overview & Terminology

  1. Data Analysis

    Relationship between Stress indicators and Physiological Measurements
    Relationship over the rounds
    Subgroups and Outliers
    Cohorts comparison: Similarities and Differences

3. Summary and Discussion

Relationship between Stress indicator and Physical Measurements

Relationship between Stress indicator and Physical Measurements

Outline

1. Overview & Terminology

  1. Data Analysis

    Relationship between Stress indicators and Physiological Measurements
    Relationship over the rounds
    Subgroups and Outliers
    Cohorts comparison: Similarities and Differences

3. Summary and Discussion

Relationship over the rounds

Relationship over the rounds

Relationship over the rounds

Relationship over the rounds

Outline

1. Overview & Terminology

  1. Data Analysis

    Relationship between Stress indicators and Physiological Measurements
    Relationship over the rounds
    Subgroups and Outliers
    Cohorts comparison

3. Summary and Discussion

Stress resilient groups

– All participants with high HRV values belong to the Adapted training version.

Stress resilient groups

Stress resilient groups

Outline

1. Overview & Terminology

  1. Data Analysis

    Relationship between Stress indicators and Physiological Measurements
    Relationship over the rounds
    Subgroups’ behavior
    Cohorts comparison

3. Summary and Discussion

Cohort comparison

Cohort comparison

Cohort comparison

Cohort comparison